摘要:
In manufacturing an optical device having a plurality of optical modulators and a color combining optical system, optical properties of a projection optical system are acquired, reference positions of the optical modulators are acquired, deviations of the optical modulators are calculated based on previously acquired optical properties, and the positions of the optical modulators are adjusted based on the deviations while detecting a combined light from the color combining optical system.
摘要:
A projection display with a common light source sharing system for improved illumination uniformity is described. The common light source is coupled through a light-dividing prism to multiple integrators. Each integrator is coupled to one or more imaging devices that project image tiles to form a larger composite tiled image.
摘要:
A projector apparatus comprising a digital micromirror device (DMD) means is disclosed. According to this apparatus, it is possible to carry out the detection of color temperature and the adjustment of white balance with respect to the projection light in a light condition in a convenient manner. It is further possible to shift the position of the picture formed by the projection light on the screen. A projector apparatus (1) is constructed comprising a shutter (7) disposed downstream of the projection optics means (6) for blocking the projection light and a sensor means (8) attached to the shutter (7). Another projector apparatus (1a) is constructed comprising a sliding means (18a) for causing a projection optics means (8a) to be slid relative to a casing (2a) constituting the apparatus body in a parallel relation to the optical axis of the projection optics means (8a) and a follow-up means (19a) for causing a sensor means (10a) to follow the projection optics means (8a).
摘要:
A projection screen capable of sharply displaying an image even under bright environmental light with high image visibility. A projection screen has a polarized-light selective reflection layer with a cholesteric liquid crystalline structure, capable of selectively reflecting a specific polarized light component, and a substrate for supporting the reflection layer. Of the light (right-handed circularly polarized light and left-handed circularly polarized light in the selective reflection wave range, and right-handed circularly polarized light and left-handed circularly polarized light not in the selective reflection wave range) entering the reflection layer from the viewer's side, the right-handed light in the selective reflection wave range is reflected from the reflection layer as reflected light. The cholesteric liquid crystalline structure light layer includes a plurality of helical-structure parts that have different directions of helical axes. As a result of structural non-uniformity in such a structure, the light that is selectively reflected (reflected light) is diffused.
摘要:
A scan type display optical system is disclosed in which the position and inclination of an image formed by projection light is made variable. The scan type display optical system comprises an optical scanning member for deflecting and scanning light, and a projection optical system which includes a plurality of optical surfaces containing a reflective surface. The projection optical system projects light from the optical scanning member. An incidence range of light from the optical scanning member to a first optical surface on which the light is incident initially out of the plurality of optical surfaces is variable.
摘要:
A light emitted from a semiconductor light emitting device array having a plurality of semiconductor light emitting devices arranged two-dimensionally on a substrate is converged by a condensing lens. In a light guide, a mirror surface is formed from a light incidence port to a light emission port along an inner wall surface. The semiconductor light emitting device array and the condensing lens are arranged in that order toward the light emission port inside the light incidence port of the light guide. A part of the inner wall surface of the light guide is narrowed down substantially along a condensing angle of the condensing lens. The light guide includes parallel inner wall surfaces facing each other, following a portion obtained by narrowing down a part of the inner wall surface, in order to emit the light (each color light) converged by the condensing lens while repeatedly reflecting the light on the mirror surface.
摘要:
A method displays an output image on an object. A set of unique markers are fixed to the object at predetermined locations. An input image of the object and the markers is acquired with a camera in a fixed physical relationship to a projector. A pose of the projector with respect to the markers is determined from the image. Then, one or more output images related to the object can be projected onto the object, at predetermine locations, according to the pose of the projector and the unique markers.
摘要:
A method projects one or more image onto a curved display surface. First, a predetermined structured light pattern is projected onto the display surface. A stereo pair of images is acquired of the projected images on the display surface. Then, a quadric transfer function between the predetermined images and the stereo pair of images, via the display surface, is determined. Thus, an arbitrary output image can be warped according to the quadric transfer function so that when it is projected onto the display surface it appears correct.
摘要:
A projection optical system is disclosed with which undistorted images can be obtained at any image position within a specification range, and whose projection angle can be changed. The projection optical system includes a plurality of optical elements and a first optical system constituted by at least one of the plurality of optical elements having the ability to form an image with light onto a predetermined surface different from the projection surface. A projection image of the original image can be moved by rotating a first optical element of the plurality of optical elements substantially around a center of an exit pupil position of the first optical system as the rotation center.
摘要:
In a projection arrangement comprising a light source (1) for generating a luminous field (2), a reflecting light modulator (4; 27) onto which light coming from the luminous field (2) may be directed, said light being modulated by the light modulator (4; 27) in order to generate an image, and further comprising projection optics (5; 21, 32), arranged following the light modulator, for projecting said image, the projection optics (5; 21, 32) comprise imaging optics (5; 21) including a mirror (9, 25) and a lens (6; 7; 8; 22; 23; 24) arranged between the light modulator (4; 27) and the mirror (9; 25), the light coming from the light modulator (4; 27) and reflected by the mirror (9; 25) passing twice through the lens (6; 7; 8; 22; 23; 24) and the light coming from the luminous field (2), which is directed onto the light modulator (4; 27), passing through the lens (6; 7; 8; 22; 23, 24) of the imaging optics (5; 21) only once.